Wheeled supporting device



Patented Jan. 4, 1927.

' ALBERT C. BERG, CHEYEHNE'VIELLS, 'CQLGRADO'.

WHEELED SUEPORTIIQ'G DEVICE.

Application filed-December 28, 1925.

My present invention has to do with the movements of 11 avy machinery, and it contemplates the provision of a peculiar and advantageous wheeled support designed primarily to carry the weight of a sliding or skidding apparatus such as a snow plow when itwis desired to move the same over a bare stretch roadway or pavement.

My invention also contemplates the provision in a supporting device of the kind indicated of means whereby the supporting device may be utilized torthe raising and for the maintenance in raised position of the machine, and may alsobe utilized for the guiding of the supporting machine as when it desired to make a turn.

Other objects and practical advantages of the invention will be fully understood from the followingdescription and claims when the same are read in connection with the (,lrawings, accompanying and tormiug part of this specification, in which Figure 1. is a view showing my improvemeutas associated with a portion of a machine tobe supported, the improvement be ing partly in elevation and partly in section.

Figure a vertical section taken on the line 2-2 of Figure 1.

Figure 3 is a horizontal scctiontahen in the plane indicated by the line 3-3 of Fig-- ure 2. looliiu downwardl Similar numerals of reference designate correspon ding parts in allot the views ot the drawings.

I show in: Figures 1 and 2 a portion 1 ot' the frame 0t an apparatus which may be a snow plow or any other apparatus that it is desired to move.

For the association ot my improvement with thessaid ifltlli'lGl,jtll(-B latter is provided at 2 with a bearing in which is disposed the shunt: 3 otthe yoke at comprised in the improved device, the said shank 3 being of circle term in cross-section so as to permit of: tree movement of the same about its axis in the said bearing 2. The upper end of the shank 3 is bifurcated as designated by P, and in the bifurcation is arranged a circumt'erentially grooved sheave 5. Trained over the said sheave 5 is a cable 6 one end 01" which is connected to the frame 1 asdesignated by 7. The other end of the cable 6 is connected to and designed to be wound upon a drum 8 mounted between arms 9 car ricd by the shank 3. The said drum 8 is equipped with a handle 10 and a ratchet disk Serial No. 77,892.-

11, the latter for cooperation with a pawl 12 on one armt, while when the pawl is in normal. position reverse turningot the drum 8 and the letting oil of thecable 6 t eretrom. will be prevented. When, however, it desired to pay the cable 6 oththe drum 8 as when the frame 1 is to be lowered, it is simply necessary to throw the pawl 12 back out of engagement with the ratchetdisk ll.

Carried in appropriate manner in the arms of the yoke 4 is a shaft 20.which in: the preferred embodiment of .my invention .is lined against rotation in the yoke. The end portions of the said shaft extend outwardly beyond the arms of the yoked, and the portion .ot the shaft-between the said arms is preferably con'iparatively large for the sake of strength and. for the adequate carriage of a wheel 21. The wheel. 21 is movable :tfreely about the-shaft 20, and it is within the purview of myinvention to employ any appropriate means for the thorough lubrication of the wheel. 7

The extended end portions of the shatt .20 are arranged loosely in biturcations22 in han ers 28 on anannnhis 2d, the said annulus 24. being provided with peripheral spur gear teetlrzv designated by 25 and shown in Figure 3. The annulus 2 1 is ar ranged within a ring bearing 26 which is designed to: be connected .with the frame 1 through the medium of bolts .or screws. 21' or other appropriatemeans. The ring bear.-

. ing 26: is arranged above the annulus 2 1 and hence there is (no necessity of connecting the said elements 24 and 2.6, the weight of the latter being imposed on the former. .The ring bearing 2-6 is provided at. 28 withan ott'set, and in the said offset is jotunaled a shaft 29 .on which is a spur gear 30, interlneshed with the teeth oi" the annulus 24. The shat 29 is also equipped with a hand wheel 31, and manitestly when the said shaft 29 is turned about its axis, the spur gear carrying annulus 24 will also be turned together with the wheel 21 and the yoke 4 in which the said wheel 21 mounted. The turning mechanism just described is for the purpose of facilitating the making of turns with the apparatus supported by my improvement.

When it is desired to lock the annulus 24 against turning as when the supported apparatus is traversing a straight course, it is simply necessary for the operator or attendant to drop a key or pin d0 through an aper llt) ture 41 in the ring bearing 26, and so that the said pin or key will rest in one oi the interdental spaces of the annulus 24 when it will be appreciated turning of the annulus 24 in the ring hearing or movement of the ring bearing 26 about the annulus 24: will be precluded.

It will also be readily understood from the foregoing that through the medium of my improvement the frame 1 ot the apparatus may be raised with but little etl'ort on the part of an operator and may be adjustably i'xed at various heights within certain limits.

Notwithstanding the practical advantages of my improvement as set forth in the fore going, it will be appreciated that the improvement is simple and inexpensive in construction, is susceptible ot' being readily applied to an apparatus to be supported, and is well adapted to withstand the shock and strain to which devices of corresponding character are ordinarily subjected.

The construction illustrated and described herein constitute the preferred embodiment of my invention and I have described the same in detail in order to impart a full, clear and exact understanding of the. said embodiment. 1. do not desire, however, to be understood as confining myself to the specific construction and relative arrangement of the parts as disclosed, my invention being defined by my appended claims within the scope of which changes in structure and in relative arrangement may be made without departure from my invention.

Having described my invention, what I claim and desire to secure by Letters-Patent, is

1. A wheeled support comprising a ring bearing having an offset portion, a shaft mounted in said offset portion and equipped with a spur gear, a toothed annulus intermeshed with the said spur gear and having bifurcated hangers spaced apart, a yoke having a shank of circular cross-section, a drum carried by said yoke, 21 cable trained over a guide on the yoke shank and interposed be tween and connected to an apparatus to be supported and the said drum, and means for detachably securing the said drum against rotation; the said yoke carrying a wheel and being provided with lateral portions disposed in the bifurcations of the said hangers.

2. A wheeled supporting device comprising a ring bearing, a toothed annulus associated with said bearing and having pendent, spaced, hit'urcz ted portions, a gear carried by the rin hearing for cooperation with said toothed annulus, a yoke having a shank of circular cross-section and also having a bifurcated upper end, a. sheave mounted in the said bifurcation in the upper end of the shank, a drum carried by the yoke, a cable trained over said sheave and connected with said drum and adapted to be connected with an apparatus to be supported, means for detachably holding the drum against retrograde rotation, a wheel carried in the said yoke, and lateral portions on the yoke and disposed in the bifurcations in the pendent portion of the annulus.

3. A wheeled supporting device comprising a ring bearing, a toothed annulus associated with said bearing and having pendent, spaced, bifurcated portions, a gear carried by the ring bearing for cooperation with said toothed annulus, a yoke having a shank of circular cross-section and also having a bifurcated upper end, a sheave mounted in the said biturcation in the upper end or the shank, a drum carried by the yoke, a cable trained over said sheave and connected with said drum and adapted to be connected with an apparatus to be supported, means for detachably holding the drum against retrograde rotation, a wheel carried in the said yoke, and lateral portions on the yoke and disposed in the bifurcations in the pendent portions of the annulus; the ring bearing being provided with a vertically disposed aperture tor the reception of a locking pin when one of the interdental spaces of the toothed annulus is coincident with the said aperture.

In testimony whereof I affix my signature.

ALBERT C. BERG. 

